Machine for lacquering cans



No. 610365. Patented Sept. 6, I898.

c. A; BURT.

MACHINE FOB LACUUERING CANS.

(Applicatiun filed July 16, 1897.)

(No Model.) 2 Sheets-Sheet L N0. '6|0,I65. PatentedSept. 6, 189s.

c. A. BURT. MACHINE FOR LAGHUERING CANS;

(Application filed Jul 16, 1897.) QNO Model.) 2 Sheets-Sheet 2.

1s PETERS 0a.. DHDTO umo w llnrrnn STATES P T NT 1 rrron.

CHARLES ALBERT BURT, OF BALTIMORE, MARYLAND.

MACHINE FOR LACQUERING CANS.

SPECIFICATION forming part of Letters Patent No. 510,165, defied September e, 1898. Application filed July 16, 1897- Serial No- 44,766. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES ALBERT BURT, of the city of Baltimore, in the State of Maryland, have invented certain Improvements in Machines for Lacquering Cans, of which the following is a specification.

In the description of the said invention which follows reference is' made to the accompanying drawings, forming a part hereof, and in whichi Figure l is an exterior side view of the improved machine. Fig. 2 is a plan of Fig. 1. Fig. 3 is an enlarged longitudinal central section of the machine. Fig. 4: is an enlarged cross-section of Fig. 1, taken on the dotted line w Fig. 5 is an enlarged detail of the machine hereinafter described.

Referring to the drawings, A is the bed of the machine, supported by the legs a. At one end of the bed A are the feed rails B and at the other end the delivery-rails C. The feed and delivery rails are both inclined, so that the cans to be lacquered will roll by gravity toward and from the bed. The inner ends of the feed and delivery rails are connected by the bed-rails D, which are of angular crosssection. The cans are rolled along the bedrails by a belt mechanism hereinafter described, and the cans are kept central of the bed during their passage by flanges b, with which the heads of the cans come in contact. A can (designated by E) is shown on the bedrails in Fig. 3. The bedrails are raised slightly at the center, (see Fig. 3,) so that the cans will bear harder against the belt mechanism while they are at the center of the machine than when they pass ontoor off the bed. The horizontal parts of the bed-rails are supported by angle-strips F.

G and H are pairs of sprocket-wheels on shafts c and d, respectively, which revolve in suitable bearings f, erected on the bed A. These sprocket-wheels are connected by the endless chains J, and the two chains are cov ered by a belt K, of some flexible material, such as leather or canvas.

The vertical position of the belt K is such that its lower section bears slightly on the cans as they pass onto and off the bed-rails, and in view of the bed-rails being elevated somewhat at the center the belt bears harder on the cans at that point. The pressure on the cans while theyare centrally of the bed is, however, somewhat relieved by covering the bed-rails for some distance at either side of the center line of the machine with apiece of felt g or some other similar porous compressible material.

- The shaft 0 is provided with a crank -handle L, whereby the sprocket-chains .I and their covering-belt-K are' made to moveso as to carry the cans longitudinally of the machine in the lacquering operation.

M M arecylindrical brushes on shafts '5, supported in bearing-boxes 7c, and they are driven from the shaft d by means of the pul leys m audit and the round belts 0, which pass over the small idle-pulleys 19. To protect the brushes from dust, they are partially inclosed by the screens N.

Tothe upper edges of the screens, which are directly over the brushes M, are attached aprons O of canvas, felt, or some other soft porous material; These aprons rest on the brushes and areturned up at their lower edges to form pockets Z.

The turned-up portions of the aprons are held by the strips g, which rest against the flanges r of the rigid plate Q, which serves to prevent upward deflection of the lower section of the sprocket-chains and their covering-belt.

Ris a receptacle for lacquer placed over the aprons, provided with cocks s at its sides. These cocks are opened so that thelacquer will drip onto the upper surface of the aprons and saturate them. The quantity of lacquer fed to the upper side of the aprons is intended to be only such as will be taken up by the aprons and keep them saturated; but in case there is any surplus it willmerely descend the inclined saturated surface of the aprons and collect in the pockets Zthereof. In such case the cooks s will be slightly clbsed to reduce their discharge, and the accumulated lacquer in the pockets will be gradually taken up or absorbed by the porous material.

In the rotation of the cylindrical brushes they receive lacquer from the under side of the aprons, and by properly regulating the drip or flow of the lacquer by means of the cooks the brushes will always take 3' ust enough lacquer to properly coat the ends of the cans.

An inclined tray a, (see Figs. 1 and 4,) situ ated under the bed of the machine, receives any lacquer which drips from the inner surfaces of the screens N and conducts it to a pan 1).

In order that the cans in passing to the machine may be brought to the center of the bed and so as to enter between the flanges b of the bed-rails, I provide the stands f or any other stationary part of the machine adapted for the purpose with flaring guards S.

T is a pad, of felt orsome otherporous and soft material, secured between the deliveryrails O and near to their upper ends, and Ua second receptacle for lacquer situated directly over the said pad. This receptacle is provided with a cock V, so that lacquer may be made to drip to the pad.

W is a pan to collect any lacquer which drips over the lower end of the pad T.

The object of the lacquer-saturated pad T is to coat with lacquer the bodies of the cans as they roll from the bed of the machine. The flanges of the heads, which project somewhat beyond the bodies, are lacquered in rolling over the pieces of flexible porous material 9 at the center of the bed-rails, which pieces become saturated with lacquer which passes beyond the heads by the action of the rotary brushes. From this it will be seen that with the felt-coated bed-rails and the saturated pad T the entire bodies of the cans are lacquered before they leave the machine.

The machine beingin motion efiected either by hand or steam power, the cans to be lacquered are placed on the inclined feed-rails, when they roll by gravity to under the feedbelt K. They are then carried along the bed-rails with their heads in contact with the revolving brushes until they reach the inclined delivery-rails, when they roll down them by gravity and pass from the machine in a finished condition.

It will be understood that in rollinga canhead lengthwise of a horizontally-revolving brush every part of the head is brushed a great number of times, and the brush need not therefore have so much lacquer on it to produce good results. The application of the liquid lacquer to the brushes by means of saturated aprons is another valuable feature, as with no other devices that I am acquainted with can the lacquer be so evenly distributed and so economically used.

I claim as my invention 1. In a machine for lacquering cans, a brush to apply the lacquer to the cans, combined with a lacquer-saturated flexible cloth against which the brushes revolve to receive the lac-' zontally-placed revoluble brushes with which the heads of the cans come in contact in their passage along the bed, porous aprons having their under side in contact with the revoluble brushes, and a receptacle for lacquer with a discharge leading to the upper surface of the said aprons, substantially as specified.

4. In a machine for lacquering cans, the combination of a bed and means to roll cans longitudinally of the same, horizontallyplaced revoluble cylindrical brushes with which the heads of the cans come in contact in their passage along the bed, porous aprons situated over, and with their under side in contact with the brushes, and with their lower edge turned up to form pockets, and areceptacle for lacquer with discharge-cocks to convcy the lacquer onto the upper surface of the porous aprons to saturate the same, substantially as specified.

5. In a machine for lacquering cans, the combination of an endless feed-belt to roll cans longitudinally of the machine, revoluble cylindrical brushes which extend longitudinally of the path of the rolling cans with their centers practically coincident with the centers of the cans, a receptacle for lacquer with means to control the discharge therefrom, porous flexible aprons with their under side resting on the brushes, and having their upper side supplied with lacquer from a suitable receptacle, substantially as specified.

CHARLES ALBERT BURT.

Witnesses:

WM. T. HOWARD, DANL. FISHER. 

